I am traveling from the USA to Santiago, Chile next week bringing a new sealed iPhone 7 for my husband. I am wondering if it's possible for me to bring it as is (in this case, unopened sealed box), or if i should take it out of the box before I travel and carry it that way. I prefer to bring it sealed, but I am worried that I am going to have issues at security. Has anyone ever had a similar experience when traveling to South America? Also, would I have to declare it in any way?